.bg {
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}
.title {
  margin-top: 140px;
  width: 100%;
  height: 70px;
  color: #fff;
  font-size: 58px;
  text-align: center;
}
.subtitle {
  margin-top: 40px;
  display: flex;
  justify-content: center;
  color: #fff;
  font-size: 24px;
}
.subtitle_item {
  margin-left: 40px;
  &:first-child {
    margin-left: 0;
  }
}
.body {
  margin-top: 140px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.body_item {
  margin-left: 50px;
  color: #fff;
  font-size: 58px;
  &:first-child {
    margin-left: 0;
  }
}
.op {
  margin-top: 140px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.dev {
  position: absolute;
  z-index: 100;
  top: 0;
  left: 0;
}
.start {
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50px;
  width: 160px;
  height: 50px;
  font-size: 30px;
  color: rgb(251, 218, 5);
  cursor: pointer;
  box-shadow: 0 3px 20px rgba(138, 7, 16, 0.3);
}
